Apps that auto-share your activity on Facebook can be a pain in the ass, and Facebook is taking steps to block the worst offenders. New rules require that apps that auto-share information about articles you read or videos you watch can only do so if you engage with the content for at least 10 seconds. Facebook has also introduced additional restrictions on video apps: They'll now need to provide "clear, on-going, and in-context messaging" that your activity is being published on Facebook. For a full list of Facebook's new restrictions on "Publishing Actions" head over to the Open Graph Checklist. [Facebook via TechCrunch]